package com.itheima_02;

public class StringBuilder02 {
    public static void main(String[] args) {
        //创建一个空白可变字符串对象，不含有任何内容
        StringBuilder sb = new StringBuilder();
        System.out.println(sb);
        StringBuilder sb2 = new StringBuilder("itheima");
        System.out.println(sb2);
    }
}
